Convert 10 Sierra Leonean Leone (SLE) to Old Mauritanian Ouguiya (MRO)

Convert Sierra Leonean leones to old Mauritanian ouguiyas at the live mid-market rate. Reverse: MRO to SLE

The Old Mauritanian Ouguiya is no longer in use

Old Mauritanian Ouguiya (MRO) was replaced by the Mauritanian Ouguiya (MRU) in 2018. For today’s money, convert SLE to MRU.

Amount

From

10 Sierra Leonean leones =

154.91 MRO 0.00% today

1 SLE = 15.4911 MRO · 1 MRO = 0.064553 SLE

Mid-market rate, updated 08:52 UTC. Paid plans update as often as every 60 seconds. Get SLE→MRO rates via API

SLE to MRO over the last year

52-week high: 15.762
52-week low: 14.483
52-week average: 15.543
Change over the year: +0.98%

Conversion tables

SLE to MRO
SLE	MRO
1 SLE	15.49 MRO
10 SLE	154.91 MRO
100 SLE	1,549.11 MRO
1,000 SLE	15,491.14 MRO
10,000 SLE	154,911.41 MRO
50,000 SLE	774,557.07 MRO
100,000 SLE	1,549,114.14 MRO

MRO to SLE
MRO	SLE
1 MRO	0.06455 SLE
10 MRO	0.6455 SLE
100 MRO	6.46 SLE
1,000 MRO	64.55 SLE
10,000 MRO	645.53 SLE
50,000 MRO	3,227.65 SLE
100,000 MRO	6,455.30 SLE

Get SLE→MRO rates via API

The live rate, the rate on any past day or a whole range, for MRO and 170+ other currencies, as JSON. Free plan included. See the exchange rate API.

Get a free API key API documentation

curl https://api.currencyapi.com/v3/latest \
  -G -d base_currency=SLE -d currencies=MRO \
  -H "apikey: YOUR-API-KEY"

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=SLE -d currencies=MRO \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about SLE to MRO

How much is 10 SLE in MRO?

10 Sierra Leonean leones is 154.91 old Mauritanian ouguiyas at the mid-market rate of 4 October 2026, 08:52 UTC, when 1 SLE = 15.4911 MRO.

What was the SLE to MRO rate over the last year?

Over the last 52 weeks 1 SLE ranged from 14.4827 to 15.7616 MRO, 15.5435 MRO on average.

Which exchange rate is this?

The mid-market rate: the midpoint between what currency markets pay and ask for SLE/MRO, without the margin a bank or card issuer adds, so the rate you are charged is usually a little worse.